FLUORESCENCE QUENCHING OF 5,10,15,20-TETRA(p-TOLYL)PORPHINE and ITS ZINC COMPLEX BY QUINONES. CHARGE-TRANSFER INTERACTION and TRANSIENT EFFECT |
| |
| Authors: | Sunao Yamada Toshinori Sato Koji Kano Teiichiro Ogawa |
| |
| Institution: | Department of Molecular Science and Technology, Graduate School of Engineering Sciences. Kyushu University, Kasuga-shi.Fukuoka 816, Japan |
| |
| Abstract: | The fluorescent states of tetratolylporphyrin and its zinc complex in acetone were quenched by various kinds of quinones. The transient effect for the collisional quenching caused the upward deviation of the plots of the inversed fluorescence intensities of the porphyrins vs the quinone concentrations. A charge-transfer interaction between the porphyrins in the singlet excited states and the quinones was suggested from the dependence of the quenching rate constants on the electron affinities of the quinones. |
| |
| Keywords: | |
|
|
